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The AAPG/Datapages Combined Publications Database
Showing 33,118 Results. Searched 200,293 documents.
Pore Pressure Prediction in Organic Shales of the Permian Basin: Rock Physics Basis
Prajnajyoti Mazumdar, Lev Vernik, Alex Dale
Unconventional Resources Technology Conference (URTEC)
...-matrix velocity of shale vs. TOC for constant Vcl =25% showing the Reuss and Hill lines (dotted black) and the final VPm model (red). Using the elastic...
2025
Abstract: Accurate Conversion between Offset Image Gathers and Angle Image Gathers, by Jianming Sheng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
Flow Behavior of Ponded Turbidity Currents
Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey
Journal of Sedimentary Research (SEPM)
...; this divides a lower outbound-moving layer from an upper return layer. The basal layer evolves to constant concentration and grain size, whereas...
2015
Ultrasound reverse time migration for human brain imaging
Ting Li, Bo Feng, Yang Zhou, Rongwei Xu, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... method to accurately locate the location of cerebral hemorrhage. Li et al. (2022) performed ultrasound velocity inversion and reverse time migration...
2024
Maturation of Sediments Near Horizontal and Inclined Salt Sheets
K. Carter, I. Lerche
GCAGS Transactions
... 2. Far from the edge of the salt, the heat flow reduces to the one dimensional case of a constant heat flux flowing vertically through the salt...
1990
Reflection waveform inversion assisted by full-wavefield imaging
Mikhail Davydenko, Eric Verschuur
International Meeting for Applied Geoscience and Energy (IMAGE)
...-migration and computing velocity gradient using that image. In this paper, we modify the LSRTM approach to handle multiple scattering even when a smooth...
2022
Abstract: Azimuthal Processing For Unconventional Resource Plays Using An Orthorhombic Velocity Model; #90174 (2014)
Shaowu Wang and David Wilkinson
Search and Discovery.com
..., dip-moveout (DMO) removal and time migration. The estimation of velocity parameters for orthorhombic media is the key for azimuthal processing using...
2014
High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study
Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc
Indonesian Petroleum Association
..., the initial starting model was derived from a smooth version of a reflection traveltime tomography velocity field derived from a depth migration workflow...
2014
Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias
Pierre-Francois Roux
Unconventional Resources Technology Conference (URTEC)
...its amplitude larger than a given noise threshold. We have assumed that the detection is performed via a migration operation, as is often the c...
2017
Depth Imaging Coil Data: Multi Azimuthal Tomographic Earth Model Building and Imaging of Tulip (Paper A15)
S. Chen, M. Buia, L. Livraghi, M. Bakhrudin, M. Tham, M. Bayly, S. Ng, O. Zdraveva
Geological Society of Malaysia (GSM)
... can be investigated. In this case, observation of azimuth and offset organized butterfly gather QC displays indicated that azimuth velocity change...
2012
Resolving Seismic Attenuation Issue through Q-Migration, a Case Study in Sisi-Nubi Field, Indonesia
Bastian Hutahayan, Keat Huat Teng, Kelik Moersidin, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam
Indonesian Petroleum Association
...Resolving Seismic Attenuation Issue through Q-Migration, a Case Study in Sisi-Nubi Field, Indonesia Bastian Hutahayan, Keat Huat Teng, Kelik...
2015
Current Trends in Geophysics
H. E. Stommel, J. M. Graul
Indonesian Petroleum Association
... with the wrong velocity. The lower part of figure 19 demonstrates the potential benefits of migration before stack. In this procedure, common offset...
1978
Experimental and Field Studies on the Genesis of Sandstones
Gerard V. Middleton
Wyoming Geological Association
... to move by traction. In the first case, (a), the sediment size is very small and the velocity is very low—consequently there is a thick laminar...
1966
Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport
James McLeman, Tim Burgess, Tom Rayment, Victor Chua
International Meeting for Applied Geoscience and Energy (IMAGE)
... experiment which compares the L2 and KR objective functions when an initial velocity model is perturbed via scaling by a constant ratio. (5) Where I...
2022
Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging
S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin
Indonesian Petroleum Association
.... * WesternGeco • Low signal-to-noise ratio creating ambiguity in estimating accurate velocity model of subsurface. This case study demonstrates...
2020
Three Dimensional Exploration in California — A Case History
E. T. Selby
Indonesian Petroleum Association
... section and accurate velocity information are pre-requisites for successful migration; it is this information which allow the dips and depths...
1977
Abstract: Duplex Wave Migration Imaging Vertical Boundaries; #90211 (2015)
Brian Link and Naum Marmalevsky
Search and Discovery.com
... methodology will only be recorded if the velocity depth model is characterized by significant vertical velocity heterogeneity. Duplex Wave Migration...
2015
Computer Modeling of Hydrocarbon Migration Pathways and Fluid Flow Histories from Carbon Isotope Anomalies in Gulf Coast Exploration Wells
D. F. Williams , Lerche , Z. Yu
GCAGS Transactions
... results described in this paper. CONCLUSIONS The subsurface hydrocarbon migration model illustrates a procedure for extracting the relative velocity...
1991
PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study
Search and Discovery.com
N/A
Seismic Modeling and Imaging - Making Waves, by Phillip Bording and Larry Lines, #40066
Search and Discovery.com
N/A
Abstract: A New Innovating Scheme to Model Hydrocarbon Migration at Basin Scale: A Pressure-Saturation Splitting, by S. Wolf, I. Faille, S. Pegaz-Fiornet, and F. Willien; #90091 (2009)
Search and Discovery.com
2009
Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)
Mark Ng
Search and Discovery.com
... , (3) v ( x, z ) z 1 where v is interval velocity, and β is an empirical constant between 0.5 to 1 which is tuned to optimize a range of dips from...
2013
Chapter 10: Earthquake, Tomographic, Seismic Reflection, and Gravity Evidence for a Shallowly Dipping Subduction Zone beneath the Caribbean Margin of Northwestern Colombia
Rocio Bernal-Olaya, Paul Mann, Carlos A. Vargas
AAPG Special Volumes
..., 1967 in Case, 1980), raising the possibility that the presence of serpentinite within the fault zone at depth may also explain the low-velocity anomaly...
2015
Know Before You Go!
Lars Zühlsdorff, Trond Haugland
GEO ExPro Magazine
... of upgraded velocity information on the final image can be tested directly. In this case, seismic image quality suffers a lot if migration velocity in a few...
2021